The AirTAC GFR30015MLJF2TK AirTAC Filter Regulator NPT1/2 is a genuine G-series filter regulator: water separation, 40 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has PT1/2" ports, a manual drain and regulates 0.05 - 0.9 MPa (7 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The AirTAC GFR300 series combines water and particulate filtration with pressure regulation in a single body, so one unit cleans the air and holds a steady downstream pressure. This configuration is the size 300 unit with 1/2 in NPT ports, a manual drain bowl in polycarbonate, a 40 um standard filter element, the low-pressure regulator type, an embedded square gauge scaled in psi, and a reverse/check valve fitted. The manual drain means an operator opens the bowl drain to expel collected condensate, which suits lines that are checked as part of a routine.
This is a genuine AirTAC part. The GFR family is published in sizes 200, 300, 400 and 600 with a choice of PT, G or NPT threads, differential-pressure, automatic or manual drains, 40 um or 5 um (W) elements, standard or low-pressure regulation, gauge scale options and bracket choices. Flow is published as curves rather than a single rating, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR30015MLJF2TK AirTAC Filter Regulator NPT1/2 |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (NPT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 130 psi) |
| Pressure type | Low-pressure type |
| Adjusting mechanism | Balanced type |
| Fluid | Compressed air |
|---|---|
| Max. working pressure | 1.0 MPa (145 psi) |
| Temperature range | -5 to +70 °C (unfreeze) |
| Drain type | Manual drain |
| Bowl material | PC |
| Pressure gauge | Fitted — square, psi scale |
| Reflux valve | Fitted (reverse flow permitted) |
Specifications follow the official AirTAC G-series air-preparation data. The regulating band is set by the drain type: automatic and differential-pressure drains regulate 0.15 - 0.9 MPa, a manual drain regulates 0.05 - 0.9 MPa. The low-pressure type adjusts over a lower band than standard; we confirm the exact figures from the factory datasheet. Air must not freeze in the unit. Flow curves, weight and outline dimensions are not published in our data set — ask us and we will confirm from the factory datasheet.
| GFR300 | G-series filter regulator, 300 body — sets the port range. |
|---|---|
| 15 | Port size PT1/2". This body offers 08 = PT1/4", 10 = PT3/8", 15 = PT1/2". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 130 psi)). |
| L | Low-pressure type. Blank is standard, L is the low-pressure type. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT thread. PT is the default; G is BSPP and T is NPT. |
| K | Reverse-flow (reflux) valve fitted. |
Field order is size, port, drain, type, bracket, gauge, shape, scale, grade, thread, reflux — a blank position takes the default. Example: GFR300-08 is a 300 body, PT1/4", differential drain, standard type, bracket included, gauge fitted, 40 µm, PT thread, no reflux valve.
A larger body carries a larger port and holds set pressure better as flow rises. AirTAC publishes flow only as curves, so size the body from your peak demand with headroom. The GFR600 uses an aluminium-alloy bowl; the 200, 300 and 400 bodies use PC.
| This model | GFR300 · PT1/2" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
Feeds filtered, regulated air to spray guns and atomising lines where a gentle, stable pressure is needed and the operator drains the bowl during end-of-shift checks.
Conditions the air feeding loom and winding-machine cylinders, catching water and lint-scale particles while holding the low working pressure those actuators expect.
Sits at the drop feeding a cartoner or wrapper's low-pressure air circuit, protecting valves from condensate and keeping actuator pressure steady through the shift.
Start with the port step: size 300 in 1/2 in NPT sits in the middle of the GFR range, so step up to 400 or 600 if your line grows, or down to 200 for compact drops. This unit has the manual drain (M), which is the right choice when someone is at the machine regularly; choose automatic drain if the bowl is hard to reach, or the differential-pressure default where scheduled checks are normal. The 40 um element is the standard grade for general plant air; specify the W variant if you need 5 um. The embedded square gauge here reads in psi, and MPa or bar scales are available. This is the low-pressure (L) regulator type, so confirm your working pressure band with us before ordering; the exact range for this variant is not published in our sheet. Thread is NPT here, with PT and G as order options, and this J-config ships without a mounting bracket. Because AirTAC publishes flow only as curves and not as a single rated figure, send us your application details and we will confirm sizing against the datasheet before you order.
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for the GFR series as curves, not as a single rated figure, so we do not quote a number here. Send us your line pressure and air demand and we will confirm the datasheet flow curve for this exact 1/2 in NPT, size 300 configuration on request.
The M in the code selects a manual drain: an operator opens the bowl drain to remove collected condensate, which suits machines that are checked on a routine. Automatic and differential-pressure drains are available on other GFR variants. The L in the code selects the low-pressure regulator type, whose exact adjustment range is not published in our sheet, so confirm your working pressure with us before ordering.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity, thread type (PT / G / NPT), gauge scale and destination. We confirm price, availability and lead time — usually within 7-8 hours.